Restructure "Safe Delete" test data directories

Conflicts:
	generators/org/jetbrains/jet/generators/tests/GenerateTests.java

idea/testData/safeDelete/deleteObject/kotlinObject/nestedObject2.kt

@@ -0,0 +1,13 @@
+package test
+
+import test.A.O
+
+object A {
+    object <caret>O {
+
+    }
+}
+
+class B {
+    val x = A.O
+}